package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // TODO 后期需要进行md5加密，然后再进行比对
        String md5PassWord = DigestUtils.md5DigestAsHex(password.getBytes());
        log.info("[password] password:{}",password);
        if (!md5PassWord.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    @Override
    public void addEmp(EmployeeDTO employeeDTO) {
        Long empId = BaseContext.threadLocalEmpID.get();
        String s = BaseContext.threadLocalEmpUserName.get();
        Employee employee = new Employee();
        Integer status = 1;
        String password = DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes());
        LocalDateTime createTime = LocalDateTime.now();
        LocalDateTime updateTime = LocalDateTime.now();
        Long createUser = empId;
        Long updateUser = empId;
        log.info("[当前线程] thread:{},empID:{},empUsername:{}",Thread.currentThread().getId(),empId,s);
        employee.setStatus(status);
        employee.setCreateTime(createTime);
        employee.setPassword(password);
        employee.setUpdateTime(updateTime);
        employee.setCreateUser(createUser);
        employee.setUpdateUser(updateUser);
        employee.setUsername(employeeDTO.getUsername());
        employee.setName(employeeDTO.getName());
        employee.setPhone(employeeDTO.getPhone());
        employee.setSex(employeeDTO.getSex());
        employee.setIdNumber(employeeDTO.getIdNumber());
        log.info("employee:{}",employee);
         employeeMapper.insertEmp(employee);
    }

    @Override
    public PageResult selectEmp(EmployeePageQueryDTO employeePageQueryDTO) {
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        log.info("[查询开始]");
        Page<Employee> employees = employeeMapper.selectEmp(employeePageQueryDTO);
        long total = employees.getTotal();
        List<Employee> result = employees.getResult();
        return new PageResult(total,result);
    }

    @Override
    public void startOrStop(Integer status, Long id) {
        log.info("执行启用与禁用");
        Employee employee = Employee.builder().status(status).id(id).build();
        employeeMapper.updateEmp(employee);
    }

    @Override
    public Employee selectById(Long id) {
       Employee employee =  employeeMapper.selectByID(id);
       employee.setPassword("******");
       log.info("employee:{}",employee);
        return employee;
    }

    @Override
    public void updateById(EmployeeDTO employeeDTO) {
        Employee employee=new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        log.info("employee:{}",employee);
        employee.setUpdateTime(LocalDateTime.now());
        employee.setUpdateUser(BaseContext.threadLocalEmpID.get());
        employeeMapper.updateEmp(employee);
    }


}
